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Define CPU scheduling.
CPU scheduling is the method of switching the CPU among several processes. CPU scheduling is the basis of multiprogrammed operating systems. By switching the CPU between processes, the operating system can make the computer more productive.
how the system call is work?
WHAT IS ACYCLIC GRAPH DIRECTORY
What are the various layers of a file system? The file system is composed of many dissimilar levels. Each level in the design uses the feature of the lower levels to make new f
Let us consider the pining details of the 68HC11 as shown below. Each pin has a defined function, some easy, some complex. A microprocessor designer should understan
SSTF (Shortest Seek Time First) After a demand go to the closest request in the work queue regardless of direction Decrease total seek time compared to FCFS Disadv
Define the Global vs. local variables It is also important to discuss the scope of resources being granted to the application program. Variable scoping is defined as the acces
Q. Consider a system in which a program is able to be separated into two parts: code and data. The CPU recognizes whether it wants an instruction (instruction fetch) or data (data
Compare contiguous-memory allocation with pure paging in the following aspects: 1. In support of dynamic memory allocation: most systems allow programs to allocate more memory t
The question of fairness, regarding page eviction, is a hard one. How do we decide what is fair? Many operating systems use global LRU, where pages from all processes are managed t
We can view an operating system as a resource allocator. Explain. We can outlook an operating system as a resource allocator. A computer system has Many resources (software and
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